The gentle slope of Mauna Loa as seen from the flanks of Mauna Kea ...
By Volcano Hazards Program
1905 (approx.)

Detailed Description
The gentle slope of Mauna Loa as seen from the flanks of Mauna Kea to the north. Younger lava flows appear dark on the volcano's flank, and clouds rest in the eastern saddle between the two volcanoes.
Sources/Usage
Public Domain.
USG HVO